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Sa Node
(Single Best Answer) Question 1: The following statements are true regarding the SA node except ?
A) Is located at the right border of the ascending aorta
B) It contains specialized nodal cardiac muscle
C) It is supplied by the atrial branches of the right coronary artery
D) It initiates cardiac conduction
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2: S.A. node acts as a pacemaker of the heart because of the fact that it ?
A) Is capable of generating impules spontaneously
B) Has rich sympathetic innervation
C) Has poor cholinergic innervation
D) Generates impulses at the highest rate
Answer (Select an option above to get the answer):
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